Also what the hell is a curio. T_T
Viewing post in Ero Dungeons [Old Version] comments
Basically any non-fight encounter/interaction in a dungeon. Similar wording for what is used in Darkest Dungeon.
Also for your first question, i think its mostly up to rng from multiple different aspects as you play through the game. You can kinda force certain desire stats through cursed items, certain classes, and maybe a few other ways but im not 100% sure on that.